Philasmicos Contacts 2 - Philasmicos Contacts is a professional business relationships management system for macOS X.
LibreOffice - Base - Base, database, database frontend, LibreOffice, ODF, Open Standards, SQL, ODBC
SugarCRM - SugarCRM enables businesses to create extraordinary customer relationships with the most innovative and affordable CRM solution in the market.
My Visual Database - Using My Visual Database, you can create databases for invoicing, inventory, CRM, or any specific purpose.
SpinOffice CRM - CRM solution for small to midsize firms
MongoDB - MongoDB (from "humongous") is a scalable, high-performance NoSQL database.